Swift Package Index

Build Information

Failed to build swift-tui, reference 0.16.0 (9ef8fe), with Swift 6.1 for watchOS using Xcode 16.3 on 10 Oct 2026 12:40:57 UTC.

Build Command

No build command. This typically means the build failed at an early stage where we determine the build command.

Build Log

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RunAll
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Builder version: 5.1.1
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/SwiftTUI/swift-tui.git
Reference: 0.16.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/SwiftTUI/swift-tui
 * tag               0.16.0     -> FETCH_HEAD
HEAD is now at 9ef8fee STUI-908 Run the full collection transport journey in the core lane
Cloned https://github.com/SwiftTUI/swift-tui.git
Revision (git rev-parse @):
9ef8feec9fee6fc199767a52aa1c913976bdb2c9
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/SwiftTUI/swift-tui.git at 0.16.0
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Build
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Selected platform:         watchOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/SwiftTUI/swift-tui.git
https://github.com/SwiftTUI/swift-tui.git
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.1.0
error: fatalError
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.1.0
Resolved source packages:
  spi-builder-workspace: (null)
2026-10-10 05:40:55.891 xcodebuild[504:2897] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-10-10_05-40-0055.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.1.0
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.1.0
Resolved source packages:
  spi-builder-workspace: (null)
2026-10-10 05:40:56.980 xcodebuild[526:3078] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-10-10_05-40-0056.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.1.0
BUILD FAILURE 6.1 watchOS